It doesn't work what can i do ?

The setting that control the sound is "Game effects", when the "global" box is not ticked, if it is ticked, then the settings that control the sound is "Alerts". That may explain why some sounds aren't heard.

If it's something else , I'm sorry, i may have made a mistake this is my second mod, let me know in the discussion part, i'll try my best to assist, i'm still very enthusiast.

It does work but sound like the robot has a slight disfunction what can i do ?

turn off the polyphony :)

tell me which samples are problematic for you in the discussion page

The song are only available with the speaker ?

With this mod yes, you can check my other mod if you want those song to be played by the game as game sound : https://mods.factorio.com/mod/PI-house-made-music

I thought the song would be good but those are just very obnoxious low quality piece of outfashioned mainstream commercial radio with cringe lyrics poorly sampled what can i do ?

Sorry, Have you tried singing tee dee dee dee with the robot ? I tried to make it so you can't sing without smiling for many songs. Dancing may help too. Not for the quality or the lyrics but to feel better :)

Not all song have lyrics now in case you are really grumpy you can listen to them.

Why are they considered epic ?

I have made hundreds of those in the hope of making the legendary robotic mixtape, i'm not sharing the worst, and i haven't found a legendary one yet.

How are those sample supposed to be assembled in game ?

Here are some blueprints made to act as example : https://forums.factorio.com/viewtopic.php?&t=113581
They just play the song though, the dj-ing is all yours !